J. A. Duthie

Duthie, J. A., & Campbell, C. L. (1991). Effects of plant debris on intensity of leaf spot diseases, incidence of pathogens, and growth of alfalfa. Phytopathology, 81(5), 511. https://doi.org/10.1094/Phyto-81-511

Duthie, J. A., Campbell, C. L., & Nelson, L. A. (1991). Efficiency of multistage sampling for estimation of intensity of leaf spot disease of alfalfa in field experiments. Phytopathology, 81(9), 959. https://doi.org/10.1094/Phyto-81-959